甜菜碱

甜菜碱是胆碱氧化代谢的终产物，是一种通用的甲基供体，特别存在于甲硫氨酸生物合成的一个次要途径中。它被用于治疗同型半胱氨酸尿症，一种在蛋氨酸生物合成主要途径的缺陷。

Betaine is a methyl group donor that functions in the normal metabolic cycle of methionine. It is a naturally occurring choline derivative commonly ingested through diet, with a role in regulating cellular hydration and maintaining cell function.Betaine in culture medium can effectively reduce the level of ROS.

Betaine is a modified amino acid consisting of glycine with three methyl groups serving as methyl donor for various metabolic pathways.

Betaine is a zwitterionic quaternary ammonium compound and is mainly present in animals, microorganisms and plants. It is one of the main constituent of several food items like wheat, shellfish, spinach and sugar beets. It is also termed as trimethylglycine, lycine, glycine betaine and oxyneurine. Betaine is a methyl derivative of glycine.